<!DOCTYPE html>1
<html>
	<head>
		<meta charset="utf-8">
		<title>选择器权重</title>
		<!-- 选择器权重越高，选中几率越大 -->
		<style>
			*{  /*权值 0   很容易被覆盖*/
				color: #ffaa00; !important
				background: #55ffff; !important
			}
			div{ /*权值 1 */
				color: #00ff00;
				background: #ff557f;
			}
			.d1{ /*权值 10*/
			    color: #ff0000;
				background: #aaff00;
			}
			div.d1{/* 选择器权值之和 权值1+10 11*/
				color: #55ff00;
				background: #ff0000;
			}
			body div.d1{ /*权值 12 */
				font-size: 25px;
				color: #000000;
				background: #ff0000;
			}
			#d1{  /*权值 100*/
				font-size: 25px;
				color: #000000;
				background: #aaff00;
			}
			div#d1{ /*权值 101*/
				font-size: 20px;
				color: #51ff21;
				background: #ff20bc;
			}
			div#d1:hover{ /*权值 111*/
			    color: #aaaaff;
				background: #aaff00;
			}
		</style>
	</head>
	<body>
		<div class="d1" id="d1" style="color: red;">Lorem, ipsum dolor sit amet consectetur adipisicing elit. Ut laboriosam dolor aliquam! Velit aut ipsum nobis in eos doloribus et repudiandae ullam unde, dolore nostrum natus accusantium minus sit totam!</div>
	</body>
</html>